*{
    margin: 0;
    padding: 0;
}
/*页面顶部 header*/
body{

    text-align: center;
    background-image: url("../image/dlog.png");
    background-repeat: no-repeat;
    background-size:100% 100%;
    background-attachment:fixed;
}
/*页面顶部 header*/
header{

    height:170px;
    line-height: 170px;
    background-color: rgba(171, 205, 239, 0);
}
/*页面中间 div*/
div{
    margin-top:10px;
    height:350px;
}
section{
    height:350px;
    background-color: rgba(171, 205, 239, 0);
    width:50%;
    float:left;
}
article{
    background-color:#F33;
    width:500px;
    text-align:center;
    margin:0px auto;
}
aside{
    font-size: large;
    text-align: center;
    height:350px;
    line-height:50px;
    background-color: rgba(126, 234, 220, 0.13);
    width:35%;
    float:right;
}
aside>h2{
    text-align: center;
    height:40px;
    line-height: 40px;
    background-color: rgba(239, 171, 198, 0);
    width:90%;

}
/*页面底部*/
footer{
    height:100px;
    line-height:100px;
    background-color: rgba(171, 205, 239, 0);
    clear:both;
    margin-top:10px;
}
